Activities
Energy flow - IB style - model answers (copy)
1. This diagram represents an Antarctic food web. How is energy lost between the trophic levels? I. Heat loss through cell respirationII. Material not consumedIII. Material not absorbed during digestion...
Activities
Energy flow - IB style qns - Model answers (copy)
Ecosystem diagrams This diagram shows the different paths which energy in molecules can take in a simple food chain, and an example of the differences between two herbivores. Questions 1. List two possible...
Activities
Grasshoppers questions model answers (copy)
This model answers refer to the questions on the student worksheet Energy flow in grasshoppers​ which can be found on the page: Modelling energy flow They are model answers and don't try to cover every...
Activities
Constructing a Carbon Cycle (2025)
This lesson begins with the identification of different carbon molecules, the reservoirs and the processes which make up the carbon cycle. The activity gets students to construct their own carbon cycle...
Activities
Carbon cycle IB style questions - model answers (2025)
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ATL in Biology
Climate Change. Free
Two short videos introduce this lesson. David Suzuki gives a simple outline of the process of climate change due to an enhanced greenhouse effect and the second illustrates the complexity of the models...
Activities
Energy in ecosystems (2025)
Beginning with some diagnostic questions about energy flow students can map their own learning during this lesson as they discover where the energy goes in a food chain and how efficient this flow is....
ATL in Biology
Ecological terms.
"Ecology is the study of the distribution and abundance of organisms, the interaction between organisms, the interaction between organisms and their environment, and structure and function of ecosystems."...
ATL in Biology
Food Webs
A simple introductory food web activity to review trophic levels and feeding relationships students begins this level and then students complete a card sorting activity to consolidate terms such as heterotroph,...
ATL in Biology
Energy Flow.
Beginning with some diagnostic questions about energy flow students can map their own learning during this lesson as they discover where the energy goes in a food chain and how efficient this flow is....